Leviticus 14:8-9 - The Seven Days Of Purification
8 And he that is to be cleansed shall wash his clothes, and shave off all his hair, and wash himself in water so that he may be clean. And after that he shall come into the camp, and shall stay outside his tent seven days. 9 But on the seventh day he shall shave all his hair off his head and his beard and his eye-brows; even all his hair shall he shave off. And he shall wash his clothes. He also shall wash his flesh in water, and he shall be clean.